Interfering stream identification in wireless communication systems
US8165235B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2008 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Feb 20, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An exemplary embodiment in accordance with this invention is a method for determining the number of interfering streams. The method includes calculating statistical information based on one or more received OFDM signals. The number of interfering streams is estimated from the statistical information in this method. The OFDM signal(s) are received via a plurality of antennas. Storing the OFDM signal(s) in a square matrix may be included in the method. A covariance matrix of the square matrix can be determined; and a noise subspace and a signal plus interference subspace can be determined based on a SVD of the covariance matrix. The statistical information may be based on the signal plus interference subspace. Apparatus, computer programs and computer-readable media are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.